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Finding the Fourth Proportional to 139,571.15, 209,272.44 and 62,620.10

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Solution

The fourth proportional to 139,571.15, 209,272.44 and 62,620.10 is: 93,892.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,571.15 : 209,272.44 = 62,620.10 : x
  2. Step 2: Convert to fraction form
    139,571.15/209,272.44 = 62,620.10/x
  3. Step 3: Cross multiply
    139,571.15x = 209,272.44 × 62,620.10
  4. Step 4: Simplify right side
    139,571.15x = 13,104,661,120.04
  5. Step 5: Solve for x
    x = 13,104,661,120.04/139,571.15
  6. Step 6: Final answer
    x = 93,892.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.